My ginger tom pet cat has a problem, he keeps biting a certain part of
his back, he makes it really saw, to the extent of it bleeding
seriously, he has to go to the vets several times per year to have it
treated. We have tried putting stuff on that makes it taste
horrible,,,but he still does it....any suggestions to save us a small
fortune would be most welcome :)

The other problem with this cat, we have another cat, a black one he
was abandoned by his owners and just came to our house one day, anyway,
ginger (the tom cat) attacts him for no reason, any suggestions most
welcome :)